Hi yasinlyu,
welcome in the Neo4j community!
Shall the relationships be of variable "type", i.e. label? What do you mean by "[:c]"? Do you want the relationship to just have the properties of c?
If you "simply" have trouble loading several edges with same type, have a look here: How to create a relation from two columns in one table? - Neo4j Graph Platform / Cypher - Neo4j Online Community
If you want variable label relationships, have a look here: apoc.refactor.setType - APOC Documentation (neo4j.com)
If you have further problems, do not hesitate to ask.
Hope this helps.
Regards,
Elena